Shorter rods.so if i have a turbo bottom end and fit a late standard 1.8 head would that make the same compression ratio as a 1.8 T ? and if i fit a thiker gasket with a shim i can run more boost is that right ?
does anybody know what rover did to lower the compression ratio on the 1.8T ?
The TF135 has marginally better cams so it could give an advantage, I would lower the CR with a 1mm shim if you want to run 10PSI.Hi
After reading back over the post i think i should try to be a little more clear about what i really need to know
i have a 1.8 turbo bottom end but it needs a head , i can't find a 1.8 turbo head anywhere and if i did it would probably cost the Earth , so i am going to use a normal 1.8 head , would there be an advantage using a tf 135 head , i would like to run 10psi of boost , so what actual needs to be done to engine ?
Just a thought. I remember reading about VVC head having better ports/valves. Would a VVC head with MGTF 135 cams be any good?
Gosnays do 1mm shims.Just what i wanted to hear dave , do you know where i can get a 1mm shim from ?
as for the vcc head idea , couldn't it use 2 vvc exhaust cams ?.